diff --git a/tqdm/tests/tests_perf.py b/tqdm/tests/tests_perf.py
index bf16be3b..93ad93ae 100644
--- a/tqdm/tests/tests_perf.py
+++ b/tqdm/tests/tests_perf.py
@@ -334,7 +334,7 @@ def test_iter_overhead_simplebar_hard():
                 a += i
 
     assert_performance(
-        9, 'trange', time_tqdm(), 'simple_progress', time_bench())
+        10, 'trange', time_tqdm(), 'simple_progress', time_bench())
 
 
 @with_setup(pretest, posttest)
@@ -363,4 +363,4 @@ def test_manual_overhead_simplebar_hard():
                 simplebar_update(10)
 
     assert_performance(
-        9, 'tqdm', time_tqdm(), 'simple_progress', time_bench())
+        10, 'tqdm', time_tqdm(), 'simple_progress', time_bench())